Where was Här kommer bärsärkarna filmed?
1965 film by Arne Mattsson
Här kommer bärsärkarna (1965) was filmed in Ljubljana, Istria and Portorož, 3 places named in its Swedish Wikipedia’s Om filmen section, in Croatia, Slovenia. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.
Places per Swedish Wikipedia's Om filmen section
Swedish Wikipedia’s Om filmen section names 3 places. Each links to the sentence that says so.

